<template>
  <div>
    <el-row type="flex" justify="end">
      <el-select
        @change="setDate"
        size="small"
        style="width: 120px"
        v-model="currentYear"
      >
        <el-option
          v-for="item in yearList"
          :key="item"
          :label="item"
          :value="item"
        >
        </el-option>
      </el-select>
      <el-select
        @change="setDate"
        size="small"
        style="width: 120px"
        v-model="currentMonth"
      >
        <el-option v-for="item in 12" :key="item" :label="item" :value="item">
        </el-option>
      </el-select>
    </el-row>
    <el-calendar v-model="currentDate">
      <!--  slot-scope="scope" 老语法 -->
      <!-- v-slot:default="scope" 新语法-->
      <!-- v-slot:插槽名称="插槽作用域变量" -->
      <template v-slot:dateCell="{ date, data }" class="content">
        <div class="date-content">
          <span class="text"> {{ data.day | getDay }}</span>
          <span class="rest" v-if="isWeek(date)">休</span>
        </div>
      </template>
    </el-calendar>
  </div>
</template>

<script>
export default {
  name: "WorkCalendar",
  filters: {
    getDay(value) {
      const day = value.split("-")[2];
      return day.startsWith("0") ? day.substr(1) : day;
    },
  },
  props: {
    // 设计默认日期，由外面传入，没有传入就是当前
    defaultDate: {
      type: Date,
      default: () => new Date(),
    },
  },
  data() {
    return {
      currentMonth: this.defaultDate.getMonth() + 1,
      currentYear: this.defaultDate.getFullYear(),
      currentDate: this.defaultDate,
    };
  },
  computed: {
    yearList() {
      return Array.from(Array(11), (item, index) => {
        return this.currentYear + index - 5;
      });
    },
  },
  methods: {
    isWeek(date) {
      return date.getDay() === 6 || date.getDay() === 0;
    },
    setDate() {
      let str = this.currentYear + "-" + this.currentMonth + "-1";
      this.currentDate = new Date(str);
    },
  },
};
</script>

<style lang="scss" scoped>
::v-deep .el-calendar-day {
  height: auto;
}
::v-deep .el-calendar-table__row td,
::v-deep .el-calendar-table tr td:first-child,
::v-deep .el-calendar-table__row td.prev {
  border: none;
}
.date-content {
  height: 40px;
  text-align: center;
  line-height: 40px;
  font-size: 14px;
}
.date-content .rest {
  color: #fff;
  border-radius: 50%;
  background: rgb(250, 124, 77);
  width: 20px;
  height: 20px;
  line-height: 20px;
  display: inline-block;
  font-size: 12px;
  margin-left: 10px;
}
.date-content .text {
  width: 20px;
  height: 20px;
  line-height: 20px;
  display: inline-block;
}
::v-deep .el-calendar-table td.is-selected .text {
  background: #409eff;
  color: #fff;
  border-radius: 50%;
}
::v-deep .el-calendar__header {
  display: none;
}
</style>
